Have you tried disabling your anti-virus and running the program as administrator? I don't know exactly how your "Game isn't working" is it crashing on startup, or just not showing up at all? If you have certain anti-virus programs, it might delete certain files it doesn't recognize. Also, can you share the version of windows on your computer and make sure you have the latest version of DirectX? Anything before Windows Vista(probably got the version wrong but y'know that really bad one before windows 7) I'd consider 'Iffy' on if it could work. If this doesn't work, I don't know what to tell you. But I'm sure there are plenty of other games you can enjoy just as gladly as with FeralHeart! :3